Crankcase Evac Pump

-
wazoo64

wazoo64

Well-Known Member
Joined
Aug 22, 2006
Messages
766
Reaction score
14
Location
York, South Carolina
Anyone know of an electric system that doesn't require pulley integration? Or is there a way to set up a pulley driven pump with power steering and alternator on a 440?
 
If your rings are decently sealed,, the conventional PCV/breather system is quite adequate,, and in fact you'd loose power running the pump.. jmo

hope it helps
 
inertia said:
If your rings are decently sealed,, the conventional PCV/breather system is quite adequate,, and in fact you'd loose power running the pump.. jmo hope it helps
Click to expand...

No idea if the rings are decently sealed. The builder Joe Sherman says they are but that doesn't mean much. Brand new build that keeps blowing gaskets and seals.
 
The other thing I'm wondering .....is it better to run PCV to the air cleaner so it evacuates at high rpm when pressure is building up? If I understand correctly the pcv to manifold vacuum is doing no evacuation at high rpm
 
wazoo64 said:
The other thing I'm wondering .....is it better to run PCV to the air cleaner so it evacuates at high rpm when pressure is building up? If I understand correctly the pcv to manifold vacuum is doing no evacuation at high rpm
Click to expand...

That's the way it's supposed to work..

You're right,, at some point the crankcase pressure will exceed vacuum,, that's where the breather comes in, and vents the excess crankcase pressure/vapors to the air cleaner,,

So the motor needs both parts to be a complete system,, the PCV to suck out the vapors at less than WOT,, and the vent to the A/Cleaner for excess pressure..

Didn't we cover this under the "Massive Oil Leak" thread..???
 
inertia said:
That's the way it's supposed to work.. You're right,, at some point the crankcase pressure will exceed vacuum,, that's where the breather comes in, and vents the excess crankcase pressure/vapors to the air cleaner,, So the motor needs both parts to be a complete system,, the PCV to suck out the vapors at less than WOT,, and the vent to the A/Cleaner for excess pressure.. Didn't we cover this under the "Massive Oil Leak" thread..???
Click to expand...

So why does this thing keep springing leaks? That's the conundrum.
 
Get it up to running temp,, pull the PCV outta the Valve cover,, vigorously rev the engine with your finger/hand over the PCV hole in the V/Cover..

Do you feel any pressure blowing your finger/hand off the hole..??
 
inertia said:
Get it up to running temp,, pull the PCV outta the Valve cover,, vigorously rev the engine with your finger/hand over the PCV hole in the V/Cover.. Do you feel any pressure blowing your finger/hand off the hole..??
Click to expand...
Will do tomorrow! Stay tuned.
 
A Joe Sherman built engine...He's one of the best in the business!

How about running a conventional PCV and piping a breather to the air filter? Maybe the best of both worlds?
 
OldmanRick said:
A Joe Sherman built engine...He's one of the best in the business! How about running a conventional PCV and piping a breather to the air filter? Maybe the best of both worlds?
Click to expand...

Lol he knows nothing about mopar. Don't get me started. If you need your heads ported give him a call. Rip off artist.
 
wazoo64 said:
Lol he knows nothing about mopar. Don't get me started. If you need your heads ported give him a call. Rip off artist.
Click to expand...

View attachment image-3281611060.jpg

Take a guess. That's right an oil pickup that didn't clear the crank. Well maybe if I would have spent more than 12k I could have got the one that cleared the the crank.
 

Attachments

  • image-289003601.jpg
    57.9 KB · Views: 407
wazoo64 said:
Take a guess. That's right an oil pickup that didn't clear the crank. Well maybe if I would have spent more than 12k I could have got the one that cleared the the crank.
Click to expand...
Oh check out the razor blade and front seal spring found in the pan. Joe Sherman needs to retire.
 
Like the other post - Joe can say whatever he wants. The leakdown is where the engine is telling you the rings are not sealing well. Listen to the engine.
 
Getting back to my original purpose of this post....is anyone running an evac pump on a 440 block with power steering?
 
wazoo64 said:
Getting back to my original purpose of this post....is anyone running an evac pump on a 440 block with power steering?
Click to expand...

You may want to pose that question on Yellowbullet.com , I only know of maybe 2 to 3 guys on here that run a Vac Pump... One of them is me.

There are way too many stock is the way to go guys on here. Out of the box questions and scenario's its best to visit Yellow Bullet where guys actually do the stuff and use it. You are WAY past stock works best. LOL

You will most likely be doing a 1 Off custom install on your set up. I had to totally modify GZ's bolt on kit for my engine. Had to visit a Lathe and machine down the Mandrel as well as modifying the pump bracket and getting a different size Cog Belt to make it all work.
 
Mad Dart said:
You may want to pose that question on Yellowbullet.com , I only know of maybe 2 to 3 guys on here that run a Vac Pump... One of them is me. There are way too many stock is the way to go guys on here. Out of the box questions and scenario's its best to visit Yellow Bullet where guys actually do the stuff and use it. You are WAY past stock works best. LOL You will most likely be doing a 1 Off custom install on your set up. I had to totally modify GZ's bolt on kit for my engine. Had to visit a Lathe and machine down the Mandrel as well as modifying the pump bracket and getting a different size Cog Belt to make it all work.
Click to expand...

Yes I'm forced to run a racing setup on what was supposed to be a street build. The area below the alternator is real tight but I think we can do it with custom everything. From what I've read a big loose engine like mine will be ok if I get the vac pump. GZ says that my cold leakdown numbers are fine with a pump and that a big cube engine that is as loose as mine must have a pump. If the pump doesn't work then I will be forced to pull engine and tear down. Honestly, it runs really very good on the street until it blows a gasket.
 
I'm going through this now on a customers big block from Compu flow. Rear main leaking in 1 mile of driving. Compu flow more or less giving me zero in terms of back up. I'm looking for an electric vacuum pump setup too for the customer. Basically, it's an all out race motor for a customer who wanted a street motor. Leaking oil and 1400 rpm idle.....Street motor....
 
GMachineDartGT said:
I'm going through this now on a customers big block from Compu flow. Rear main leaking in 1 mile of driving. Compu flow more or less giving me zero in terms of back up. I'm looking for an electric vacuum pump setup too for the customer. Basically, it's an all out race motor for a customer who wanted a street motor. Leaking oil and 1400 rpm idle.....Street motor....
Click to expand...

I've been told electric won't last very long and will only pull 4inches.
 
You must log in or register to reply here.
-

Back
Top